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37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
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Newly acquired, previously used air carrier widebody transport returns to departure airport due maintenance discrepancy.
| Attributes | |
| ACN | 149622 |
| Time | |
| Date | 199006 |
| Day | Tue |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | atc facility : lax |
| State Reference | CA |
| Altitude | msl bound lower : 34000 msl bound upper : 34000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Dusk |
| Aircraft 1 | |
| Controlling Facilities | artcc : zla tower : dca |
| Operator | common carrier : air carrier |
| Make Model Name | Widebody, Low Wing, 3 Turbojet Eng |
| Flight Phase | climbout : intermediate altitude cruise other |
| Route In Use | enroute : other oceanic enroute : pacific enroute other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| ASRS Report | 149622 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : commercial |
| Events | |
| Anomaly | aircraft equipment problem : less severe |
| Independent Detector | other flight crewa |
| Resolutory Action | none taken : unable other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Aircraft |
| Air Traffic Incident | other |
Narrative:
Climbing to FL350, scheduled flight lax-hnl. First revenue flight for this aircraft, climbing through approximately FL300, #3 throttle needed to be continually advanced to maintain climb power. At approximately FL310, throttle was fully advanced. From FL310 to FL340, power on #3 engine declined with throttle fully forward until, at FL340, engine 3 barely above flight idle. Called lax center, requested return to lax. Below FL300 on descent, #3 engine again responded normally. Dumped 10000 pounds fuel, landed lax west/O incident. This aircraft was newly acquired by our airline, and had been idle for many months. The aircraft, as a final condition for its release, should have been test flown to insure proper operation of all items due to its long idle period. In effect, we were operating a test flight with revenue passengers. Many other numerous, small items not functioning properly contributed to the decision to return. On arrival back in lax, we had 6 pages of maintenance items written up in the aircraft log book.
Original NASA ASRS Text
Title: NEWLY ACQUIRED, PREVIOUSLY USED ACR WDB RETURNS TO DEP ARPT DUE MAINTENANCE DISCREPANCY.
Narrative: CLBING TO FL350, SCHEDULED FLT LAX-HNL. FIRST REVENUE FLT FOR THIS ACFT, CLBING THROUGH APPROX FL300, #3 THROTTLE NEEDED TO BE CONTINUALLY ADVANCED TO MAINTAIN CLB PWR. AT APPROX FL310, THROTTLE WAS FULLY ADVANCED. FROM FL310 TO FL340, PWR ON #3 ENG DECLINED WITH THROTTLE FULLY FORWARD UNTIL, AT FL340, ENG 3 BARELY ABOVE FLT IDLE. CALLED LAX CTR, REQUESTED RETURN TO LAX. BELOW FL300 ON DSNT, #3 ENG AGAIN RESPONDED NORMALLY. DUMPED 10000 LBS FUEL, LANDED LAX W/O INCIDENT. THIS ACFT WAS NEWLY ACQUIRED BY OUR AIRLINE, AND HAD BEEN IDLE FOR MANY MONTHS. THE ACFT, AS A FINAL CONDITION FOR ITS RELEASE, SHOULD HAVE BEEN TEST FLOWN TO INSURE PROPER OPERATION OF ALL ITEMS DUE TO ITS LONG IDLE PERIOD. IN EFFECT, WE WERE OPERATING A TEST FLT WITH REVENUE PAXS. MANY OTHER NUMEROUS, SMALL ITEMS NOT FUNCTIONING PROPERLY CONTRIBUTED TO THE DECISION TO RETURN. ON ARR BACK IN LAX, WE HAD 6 PAGES OF MAINT ITEMS WRITTEN UP IN THE ACFT LOG BOOK.
Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.